下列哪种情况心排血量不增加
A．甲状腺功能亢进
B．维生素B1缺乏症
C．动-静脉瘘
D．贫血
E．二尖瓣关闭不全
参考答案：E
How big is the house he moved in a. As big as the old one. b. Twice as big as mine. c. As big as mine. d. Twice bigger than mine.
实现细胞免疫功能的白细胞是（）
A．T淋巴细胞
B．B淋巴细胞
C．巨噬细胞
D．单核细胞
E．嗜碱粒细胞
